* {
  margin: 0px;
  padding: 0px;
  box-sizing: border-box;
  -webkit-box-sizing: border-box;
}

.heart {
  width: 400px;
  margin: 100px auto;
  position: relative;
}

.snowfall-flakes:before,
.snowfall-flakes:after {
  content: "";
  position: absolute;
  width: 20px;
  height: 30px;
  display: block;
  background: red;
  border-radius: 10px 10px 0 0;
}

.snowfall-flakes:before {
  transform: rotate(-45deg);
}

.snowfall-flakes:after {
  transform: rotate(45deg);
  left: 7px;
}

body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: url(beijing.png);
  background-size: cover;
  background-repeat: no-repeat;

}

.p1 {
  text-align: center;
  font-size: large;
}

.p2{
  font-size: medium;
}
.p3 {
  height: 10%;
  width: 25%;
  position: fixed;
  right: 0;
  bottom: auto;
}
.tupian {
  height: 50%;
  width: 40%;
  background: url(Mother_sDay.png);
  background-size: 70%;
  background-position: center;
  background-repeat: no-repeat;
}

.dibiao {
  height: 3%;
  width: 20%;
  position: fixed;
  bottom: 4%;
  right: 2%;
}

body,
html {
  height: 100%;
  width: 100%;
}